HINGE JOINTS 



61 



joint for purposes of repair without seriously damaging the 

 belt at the joint. 



Wire-laced Hinge Joints. The most satisfactory method 

 of making a belt joint, all things considered, is by the use of 

 wire which is looped through each end of the belt in a series 

 of eyelets which project beyond the end of the belt. The 

 eyelets in the two ends are brought together and a pin of 

 rawhide is run through them, thus joining the ends of the 



FIG. 17. METHOD or MAKING A WIRE-LACED HINGE JOINT. 



belt and forming a true hinge. The finished joint does not 

 project above the surface of the pulley, and as the joint can 

 be bent through an arc of about 270 degrees there is no 

 diminution in the flexibility of the belt as a whole. The 

 joint is made in a small machine such as is shown in Fig. 16. 

 Machines of this character are made by the Peerless Belt 

 Lacing Machine Co., Philadelphia, and by the Birdsboro 

 Foundry & Machine Co., Birdsboro, Pa. 



The machine consists of three corrugated rolls arranged 

 as shown at A in Fig. 17. The belt is inserted between the 



